225479042 has 16 divisors (see below), whose sum is σ = 360900960. Its totient is φ = 105341472.

The previous prime is 225479039. The next prime is 225479047. The reversal of 225479042 is 240974522.

It is a junction number, because it is equal to n+sod(n) for n = 225478993 and 225479011.

It is not an unprimeable number, because it can be changed into a prime (225479047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37868 + ... + 43415.

It is an arithmetic number, because the mean of its divisors is an integer number (22556310).

Almost surely, 2^225479042 is an apocalyptic number.

225479042 is a deficient number, since it is larger than the sum of its proper divisors (135421918).

225479042 is a wasteful number, since it uses less digits than its factorization.

225479042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81377.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 225479042 is about 15015.9595763974. The cubic root of 225479042 is about 608.6515425012.

The spelling of 225479042 in words is "two hundred twenty-five million, four hundred seventy-nine thousand, forty-two".